In 2005, author Donovan Hohn set out to locate 28,800 rubber ducks that had been lost at sea 13 years earlier. His experiences have been recounted in a new book with the gloriously descriptive title Moby-Duck: The True Story of 28,800 Bath Toys Lost at Sea and of the Beachcombers, Oceanographers, Environmentalists and Fools, Including the Author, Who Went in Search of Them.

Related Fact: The “Rubber Duckie” song popularized by Ernie on Sesame Street spent nine weeks on the Billboard Hot 100 chart in 1970 and was nominated for a Grammy Award.

[Sources: NPR and Muppet Wiki. See previous Numbers of the Day here. ]